A beast cursed to wander the Earth

A werewolf kidnaps Lucy and takes her into the wild back woods of British Columbia. The werewolf was once her brother’s best friend, but he drank a potion given to him by Lucy's brother that transformed into a werewolf.

Unable to find a cure for his lycanthropy he cursed her family to wander the earth for the rest of their lives.

Why has the blood thirsty beast kidnapped Lucy? Has she found a way to undo the curses, save the werewolf, and her family?